Revenue - Initial Adoption Change (Details) - USD ($)	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cash and cash equivalents	$ 1,878,159		$ 3,906,797	$ 3,563,540	$ 5,949,004
Accounts receivable, net	2,821,401	$ 3,739,430	3,647,025
Prepaid expenses	626,246		389,104
Other current assets	40,456		9,140
Total current assets	5,366,262		7,952,066
Property and equipment, net	315,987		286,043
Goodwill	3,604,720		3,604,720
Intangible assets, net	451,873		667,909
Software development costs, net	1,078,337		967,927
Security deposits	148,103		148,638
Total assets	10,965,282		13,627,303
Accounts payable	1,527,539		1,756,841
Accrued expenses	1,112,108		1,592,356
Unearned revenue	0		3,070,502
Line of credit	845,365		500,550
Current portion of deferred rent	40,307		45,127
Current portion of acquisition costs payable	386,872		741,155
Total current liabilities	8,346,818		7,706,531
Deferred rent, less current portion	0		17,419
Acquisition costs payable, less current portion	351,150		609,768
Liabilities	8,697,968		8,333,718
Common stock, $.0001 par value; 200,000,000 shares authorized; 5,860,933 and 5,733,981, respectively, issued and outstanding	586		573
Additional paid-in capital	53,335,845		52,570,432
Accumulated deficit	51,069,117		47,277,420
Total stockholders’ equity	2,267,314		5,293,585
Total liabilities and stockholders’ equity	10,965,282		$ 13,627,303
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cash and cash equivalents		3,906,797
Accounts receivable, net	2,861,261	3,739,430
Prepaid expenses		389,104
Other current assets		9,140
Total current assets		8,044,471
Property and equipment, net		286,043
Goodwill		3,604,720
Intangible assets, net		667,909
Software development costs, net		967,927
Security deposits		148,638
Total assets		13,719,708
Accounts payable		1,756,841
Accrued expenses		1,592,356
Unearned revenue	4,362,719	3,261,729
Line of credit		500,550
Current portion of deferred rent		45,127
Current portion of acquisition costs payable		741,155
Total current liabilities		7,897,758
Deferred rent, less current portion		17,419
Acquisition costs payable, less current portion		609,768
Liabilities		8,524,945
Common stock, $.0001 par value; 200,000,000 shares authorized; 5,860,933 and 5,733,981, respectively, issued and outstanding		573
Additional paid-in capital		52,570,432
Accumulated deficit	50,957,349	47,376,242
Total stockholders’ equity		5,194,763
Total liabilities and stockholders’ equity		13,719,708
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts receivable, net	39,860	92,405
Total current assets		92,405
Total assets		92,405
Unearned revenue	4,362,719	191,227
Total current liabilities		191,227
Liabilities		191,227
Accumulated deficit	$ (111,768)	98,822
Total stockholders’ equity		(98,822)
Total liabilities and stockholders’ equity		$ 92,405