Stock-Based Compensation (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted	0		0		1,365,000
Options outstanding	1,314,435		1,391,636		1,429,842		70,638
Total fair value of shares vested	$ 1,100,000		$ 900,000
Closing stock price per share	$ 8.23
Options exercised	64,701	[1]	38,206	[2]	3,296	[3]
Cash consideration from exercise of stock options	$ 97,000		$ 89,000		$ 3,000
Stock-based compensation expense	800,000		$ 1,600,000		1,000,000
Unrecognized compensation expense related to unvested stock options	$ 300,000
Expected period of recognition for unrecognized compensation cost	1 year
2005 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	2,000,000
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
2016 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	3,500,000
Options granted	0
Percentage of legal entity controlled by optionee	100.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of shares vested					$ 100,000
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
Maximum [Member] | 2016 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise period of options	10 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	13,451		6,956
Cash consideration from exercise of stock options	$ 53,709		$ 6,390
Intrinsic value of options exercised	$ 28,337		$ 35,747
Net Share Settlement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised	51,250		31,250		3,296
Cash consideration from exercise of stock options	$ 0		$ 0		$ 3,000
Intrinsic value of options exercised	$ 0		$ 0		$ 19,000
Shares issued	14,498		9,820
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding	104,200
Weighted average exercise price per share of options outstanding	$ 6.03
Options exercised	9,550		16,250		0
Cash consideration from exercise of stock options	$ 48,228		$ 83,563
Intrinsic value of options exercised	$ 8,763		$ 17,925

[1] 13,451 options were exercised for cash considerations of $53,709 in 2016. The intrinsic value of the options exercised was $28,337. In addition, 51,250 options were exercised and 14,498 shares were issued through net share settlements in 2016. As a result, there was no cash consideration or intrinsic value for these options.

[2] 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.

[3] 3,296 options were exercised for cash consideration of $3,000 in 2014. The intrinsic value of the options exercised was $19,000