Intangible Assets - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Feb. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Business Acquisition [Line Items]
Contingent consideration payable		$ 511,000		$ 534,000
Increase in estimate of contingent liability		4,000	$ 0
Amortization expense		193,000	$ 197,000
Certain Assets of a Tax Preparation and Accounting Business
Business Acquisition [Line Items]
Contingent consideration payable	$ 569,000
Earn-out period	48 months
Maximum contingent consideration payable	$ 640,000
Increase in estimate of contingent liability		4,000
Partial payment of contingent consideration		$ 27,000
Certain Assets of a Tax Preparation and Accounting Business | Customer relationships
Business Acquisition [Line Items]
Amortization period of intangible assets		7 years