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Stock-Based Compensation (Narrative) (Details) - USD ($) | 12 Months Ended |
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options granted | 0 |  | 1,365,000 |  | 0 |  |
Options outstanding | 1,391,636 |  | 1,429,842 |  | 70,638 |  | 919,848
Total fair value of shares vested | $ 900,000 |  | $ 100,000 |  |  |  |
Closing stock price per share | $ 7.78 |  |  |  |  |  |
Options exercised | 38,206 | [1] | 3,296 | [2] | 849,210 | [3] |
Cash consideration from exercise of stock options | $ 89,000 |  | $ 3,000 |  | $ 0 |  |
Stock-based compensation expense | 1,600,000 |  | $ 1,000,000 |  | $ 100,000 |  |
Unrecognized compensation expense related to unvested stock options | $ 1,100,000 |  |  |  |  |  |
Expected period of recognition for unrecognized compensation cost | 1 year 7 months 6 days |  |  |  |  |  |
2005 Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of shares authorized | 2,000,000 |  |  |  |  |  |
Percentage of legal entity controlled by optionee | 100.00% |  |  |  |  |  |
2005 Plan [Member] | One-Year [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period | 1 year |  |  |  |  |  |
2005 Plan [Member] | Three-Year [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period | 3 years |  |  |  |  |  |
Maximum [Member] | 2005 Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Exercise period of options | 10 years |  |  |  |  |  |
Vesting period | 4 years |  |  |  |  |  |
Minimum [Member] | 2005 Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period | 6 months |  |  |  |  |  |
Stock Compensation Plan [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options exercised | 6,956 |  |  |  |  |  |
Cash consideration from exercise of stock options | $ 6,390 |  |  |  |  |  |
Intrinsic value of options exercised | $ 35,747 |  |  |  |  |  |
Net Share Settlement [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options exercised | 31,250 |  | 3,296 |  | 849,210 |  |
Cash consideration from exercise of stock options | $ 0 |  | $ 3,000 |  | $ 0 |  |
Intrinsic value of options exercised | $ 0 |  | $ 19,000 |  | $ 0 |  |
Shares issued | 9,820 |  |  |  | 249,647 |  |
Director [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options outstanding | 113,750 |  |  |  |  |  |
Weighted average exercise price per share of options outstanding | $ 5.94 |  |  |  |  |  |
Options exercised | 16,250 |  |  |  |  |  |
Cash consideration from exercise of stock options | $ 83,563 |  |  |  |  |  |
Intrinsic value of options exercised | $ 17,925 |  |  |  |  |  |
[1] | 6,956 options were exercised for cash considerations of $6,390 in 2015. The intrinsic value of the options exercised was $35,747. In addition, 31,250 options were exercised and 9,820 shares were issued through net share settlement in 2015, as a result there was no cash consideration or intrinsic value for the options.
[2] | 3,296 options were exercised for cash consideration of $3,000 in 2014. The intrinsic value of the options exercised was $19,000
[3] | 849,210 options were exercised and 249,647 shares were issued through net share settlement in 2013, and as a result there was no cash consideration or intrinsic value for the options.

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