Summary of Significant Accounting Policies, Reclassification and Immaterial Correction of an Error in Previously Issued Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Provision (benefit) for income taxes	$ 1,131	$ 1,131	$ (6,153)
Net income (loss)	$ (354)	$ (354)	$ 6,557
Basic earnings (loss) per common share (in dollars per share)	$ (0.02)	$ (0.02)	$ 0.34
Diluted earnings (loss) per common share (in dollars per share)		$ (0.02)	$ 0.33
Statement of Stockholders' Equity [Abstract]
Accumulated deficit	$ (42,569)	$ (42,569)	$ (42,870)
Cumulative effect of new accounting principle	655	655	0
Net (loss) Income	(354)	(354)	6,557
Balance Sheet [Abstract]
Deferred tax assets	5,461	5,461	6,494
Total assets	61,440	61,440	56,182
Other liabilities	1,371	1,371	1,258
Total liabilities	$ 30,311	$ 30,311	26,510
Previously Reported [Member]
Income Statement [Abstract]
Provision (benefit) for income taxes			(4,980)
Net income (loss)			$ 5,384
Basic earnings (loss) per common share (in dollars per share)			$ 0.28
Diluted earnings (loss) per common share (in dollars per share)			$ 0.27
Statement of Stockholders' Equity [Abstract]
Net (loss) Income			$ 5,384
Adjustment [Member]
Income Statement [Abstract]
Provision (benefit) for income taxes			(1,173)
Net income (loss)			$ 1,173
Basic earnings (loss) per common share (in dollars per share)			$ 0.06
Diluted earnings (loss) per common share (in dollars per share)			$ 0.06
Statement of Stockholders' Equity [Abstract]
Accumulated deficit			$ 1,200
Net (loss) Income			1,173
ASU 2016-09 [Member]
Income Statement [Abstract]
Net income (loss)			6,557
Statement of Stockholders' Equity [Abstract]
Cumulative effect of new accounting principle			0
Net (loss) Income			6,557
Balance Sheet [Abstract]
Deferred tax assets			6,494
Total assets			56,182
Other liabilities			1,258
Total liabilities			26,510
ASU 2016-09 [Member] | Previously Reported [Member]
Income Statement [Abstract]
Net income (loss)			5,384
Statement of Stockholders' Equity [Abstract]
Cumulative effect of new accounting principle			1,173
Net (loss) Income			5,384
Balance Sheet [Abstract]
Deferred tax assets			7,167
Total assets			56,855
Other liabilities			1,931
Total liabilities			27,183
ASU 2016-09 [Member] | Adjustment [Member]
Income Statement [Abstract]
Net income (loss)			1,173
Statement of Stockholders' Equity [Abstract]
Cumulative effect of new accounting principle			(1,173)
Net (loss) Income			1,173
Balance Sheet [Abstract]
Deferred tax assets			(673)
Total assets			(673)
Other liabilities			673
Total liabilities			$ 673