Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Jun. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Accounts receivable, allowance for doubtful accounts | $ 153 | $ 720 |
| Preferred stock, par value | $ .001 | $ .001 |
| Preferred stock, shares authorized | 2,000,000 | 2,000,000 |
| Preferred stock, shares issued | ||
| Preferred stock, shares outstanding | ||
| Common stock, par value | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 30,000,000 | 30,000,000 |
| Common stock, shares issued | 11,915,184 | 11,738,623 |
| Common stock, shares outstanding | 11,907,542 | 11,730,981 |
| Treasury stock, shares | 7,642 | 7,642 |
| Series B Preferred Stock [Member] | ||
| Preferred stock of subsidiary, par value | $ 0 | $ 0 |
| Preferred stock of subsidiary, shares authorized | 1,467,396 | 1,467,396 |
| Preferred stock of subsidiary, shares issued | 0 | 1,284,730 |
| Preferred stock of subsidiary, shares outstanding | 0 | 1,284,730 |
| Preferred stock of subsidiary, liquidation value | $ 1.00 | $ 1.00 |
| Preferred stock of subsidiary, accrued and unpaid dividends | $ 0 | $ 995 |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of dividends accrued and unpaid on an entity's issued and outstanding stock which is not included within permanent equity. No definition available.
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| X | ||||||||||
- Definition The aggregate liquidation of preferred stock in excess of the par or stated value. Preferred stock of company's subsidiary classified between liabilities and equity(mezzanine). Redemption may be at the option of the company's subsidiary equal to the option of the company's subsidiary equal to the liquidation preference value of $1.00 per share. No definition available.
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| X | ||||||||||
- Definition Per share amount of par value or stated value of preferred stock of company's subsidiary classified between liabilities and equity (mezzanine). Redemption may be at the option of the company's subsidiary equal to the liquidation preference value of $1.00 per share. No definition available.
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| X | ||||||||||
- Definition The maximum number of preferred stock of company's subsidiary permitted to be issued by the subsidiary's charter and by laws. Preferred stock of company's subsidiary classified between liabilities and equity(mezzanine). Redemption may be at the option of the company's subsidiary equal to the option of the company's subsidiary equal to the liquidation preference value of $1.00 per share. No definition available.
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| X | ||||||||||
- Definition The number of preferred stock issued to shareholders. Preferred stock of company's subsidiary classified between liabilities and equity(mezzanine). Redemption may be at the option of the company's subsidiary equal to the option of the company's subsidiary equal to the liquidation preference value of $1.00 per share. No definition available.
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| X | ||||||||||
- Definition The aggregate number of shares held by stockholders. Preferred stock of company's subsidiary classified between liabilities and equity(mezzanine). Redemption may be at the option of the company's subsidiary equal to the option of the company's subsidiary equal to the liquidation preference value of $1.00 per share. No definition available.
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| X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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