Total Unrecognized Compensation Costs Related to Non-Vested Stock-Based Compensation Arrangements (Detail) - Jun. 30, 2015 - USD ($)	Total
Common stock options
Employee Service Share -Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized [Line Items]
Unrecognized compensation cost	$ 214,977
Weighted Average Remaining Vesting Period	1 year 6 months
Restricted stock
Employee Service Share -Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized [Line Items]
Unrecognized compensation cost	$ 40,940
Weighted Average Remaining Vesting Period	7 days
ACO Plan restricted stock
Employee Service Share -Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized [Line Items]
Unrecognized compensation cost	$ 7,275
Weighted Average Remaining Vesting Period	4 days