Business Acquisitions (Details) - Business Acquisition, Bayside Business Solutions [Member] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 01, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Jul. 01, 2015
Payments to Acquire Businesses, Gross	$ 10,000
Current assets	1,922
Long-term assets	253
Identifiable intangible assets	5,005
Total liabilities assumed	(3,279)
Total identifiable net assets	3,901
Net assets acquired	$ 10,000
Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Percent	0.00%
Cash Acquired from Acquisition	$ 1,725
Business Combination, Acquired Receivables, Fair Value	178
Business Combination, Acquired Receivables, Gross Contractual Amount	178
Business Combination, Acquired Receivables, Estimated Uncollectible	0
Business Acquisition, Transaction Costs						$ 55
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		$ 1,464	$ 989	$ 2,934	$ 1,730
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		$ 202	$ 44	$ 450	$ (310)
Customer Relationships [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 3,402
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years
Computer Software, Intangible Asset [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 659
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	5 years
Other Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	$ 944
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	20 years
Banking Systems and Services [Member]
Business Acquisition [Line Items]
Goodwill, Acquired During Period						$ 6,099