Mortgage and Loans Payable - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended		0 Months Ended			1 Months Ended		12 Months Ended
	Apr. 30, 2014	Jul. 31, 2013	Mar. 31, 2015 Coins	Mar. 31, 2014	Mar. 11, 2015	May 07, 2014	Jul. 11, 2011	May 31, 2008	Nov. 30, 2011 Investor	Dec. 31, 2014	May 10, 2012	Aug. 14, 2014	May 31, 2014	Oct. 01, 2014	Oct. 01, 2015	Dec. 01, 2014	Jul. 11, 2008	Dec. 31, 2013	Jan. 02, 2013
Debt Instrument [Line Items]
Basis spread on variable rate		0.75%
Secured collateral			24,600
Value of secured collateral, percent			40.00%
Aggregate amount issuable											$ 8,000,000
Interest rate, stated percentage			8.00%
Debt instrument, number of shares	5,225
Interest rate description			Prime rate plus three-fourths of one percent (0.75%)
Promissory note face amount			9,955,000
Share repurchase agreement expiration date			Mar. 30, 2016
Promissory note outstanding amount			2,000,000
Option agreement extension period			2 years
Debt discount amount			67,241
Debt discount amortization amount			5,098
Accrued interest			9,205
Periodic payments, principal			10,750
Warrants issued to purchase common stock			1,302,083
Debt instrument conversion price, percentage			125.00%
Acceleration payment of remaining face value, percentage			125.00%
Adjusted conversion price of quoted market prices, Percentage			75.00%
Common stock initial exercise price			$ 4.32
Common stock issued under warrant terms			434,027
Period to exercise warrants			5 years
Adjusted warrants exercise price			$ 3.60	$ 3.60							$ 3.60
Registration statement filing period			6 months
Period for registration statement to be effective			90 days thereafter
Registration statement review period			120 days thereafter
Term of warrant			5 years 6 months
Gross proceeds from derivative instrument			10,000,000
Investment costs paid from proceeds			45,000
Direct financing cost			500,000
Deferred cost			246,653
Recorded expenses			253,347
Interest expense			0	271,606
Oceanica Call Option [Member]
Debt Instrument [Line Items]
Stock granted during period, value			40,000,000		40,000,000
Stock granted during period, percentage			54.00%		54.00%
Reduction in option consideration			20,000,000
Oceanica Resources S. de. R.L [Member]
Debt Instrument [Line Items]
Per share value of shares purchased by private investor			$ 2.50
Scenario, Previously Reported [Member]
Debt Instrument [Line Items]
Adjusted warrants exercise price			$ 4.32
Restatement Adjustment [Member]
Debt Instrument [Line Items]
Adjusted warrants exercise price			$ 3.60
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Basis spread on variable rate						5.00%
Maturity date			May 31, 2015
Credit facility agreement						10,000,000
Interest rate description			One month LIBOR rate plus 500 basis points
Origination fee payable						50,000
Restricted cash deposit						500,000
Outstanding loan balance			7,684,514
Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Periodic payments, principal			1,400,000
Second Tranche [Member]
Debt Instrument [Line Items]
Proceed from issuance of cash as a financing transaction			6,000,000
Minosa [Member]
Debt Instrument [Line Items]
Promissory note face amount			14,750,000
First Mortgage [Member]
Debt Instrument [Line Items]
Company's consolidated debt			0
Term Loan [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		5.00%
Debt instrument description			One month LIBOR rate plus 500 basis points
Maturity date			Jul. 31, 2016
Periodic payment		500,000
Balance of term loan			3,500,000
Project Term Loans [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			5.00%
Debt instrument description			One-month LIBOR rate plus 500 basis points
Maturity date			Jul. 24, 2014
Balance of term loan			10,000,000
Aggregate amount issuable			10,000,000									10,000,000	10,000,000
Number of wholly owned subsidiaries			2
Debt instrument, number of shares			100,000
Debt instrument, Value of shares			250,000
Amortization of components included in interest expense			287,179
Marketing program compensation expenses, percentage yet to be recognized			5.00%
Restricted cash deposit			500,000
Company's consolidated debt		10,000,000
Loan origination fee paid at closing			50,000
Loss recovered		1,800,000
Project Term Loans [Member] | Minimum [Member]
Debt Instrument [Line Items]
Initial principal amount of note, percent			50.00%
Project Term Loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Initial principal amount of note, percent			100.00%
Project Term Loans [Member] | Oceanica Resources S. de. R.L [Member]
Debt Instrument [Line Items]
Shares issued to lender			100,000
Per share value of shares purchased by private investor			$ 3.15
Aggregate value of shares issued to lender			1,000,000
Project Term Loans [Member] | Gairsoppa [Member]
Debt Instrument [Line Items]
Project term loan collateral value		10,000,000
Project Term Loans [Member] | First Tranche [Member]
Debt Instrument [Line Items]
Loan amount borrowed												5,000,000
Unused borrowing capacity												5,000,000
Project Term Loans [Member] | Second Tranche [Member]
Debt Instrument [Line Items]
Unused borrowing capacity												2,500,000
Aggregate amount issuable														2,500,000
Interest rate, stated percentage														8.00%
Project Term Loans [Member] | Second Tranche [Member] | Scenario, Forecast [Member]
Debt Instrument [Line Items]
Interest rate, stated percentage															11.00%
Project Term Loans [Member] | Third Tranche [Member]
Debt Instrument [Line Items]
Unused borrowing capacity												2,500,000
Aggregate amount issuable																2,500,000
Mortgages Payable [Member]
Debt Instrument [Line Items]
Basis spread on variable rate							0.75%
Maturity date			Jul. 11, 2013					May 14, 2015
Periodic payment								5,080
Interest rate, stated percentage								6.45%
Interest rate description			Prime rate plus three-fourths of one percent (0.75%)
Company's consolidated debt			1,087,000														2,580,000
Periodic payments, principal			10,750
New maturity date of mortgage loan			Jul. 31, 2016
Mortgages Payable [Member] | First Mortgage [Member]
Debt Instrument [Line Items]
Loan amount borrowed								679,000
Senior Convertible Notes [Member]
Debt Instrument [Line Items]
Aggregate amount issuable									10,000,000
Warrants issued to purchase common stock									1,302,083
Original principal amount of repurchased note									5,000,000
Debt related expenses			545,000
Number of institutional investors under securities purchase agreement									1
Indebtedness, interest rate per year			8.00%
Indebtedness, interest rate per year under default condition			15.00%
Original principal installments			434,783
Note repayment commencing date			Jul. 08, 2012
Debt instrument conversion price, percentage			110.00%
Initial conversion price											$ 3.17
Debt instrument amortization payment description			The conversion rate applicable to any amortization payment that were made in shares of our common stock was the lower of (a) the Conversion Price and (b) a price equal to 85.0% of the average for a ten-day period immediately prior to the applicable amortization date of the volume-weighted average price of our shares of common stock.
Senior Convertible Notes [Member] | Lender [Member]
Debt Instrument [Line Items]
Debt related expenses			45,000
Senior Convertible Note [Member]
Debt Instrument [Line Items]
Debt instrument conversion, reset conversion price description			The reset conversion price applicable to the Initial Note was to be adjusted to the lesser of (a) the then current conversion price and (b) the greater of (i) $1.44 and (ii) 110.0% of the market price of our common stock on the six-month anniversary of the initial closing date (as applicable, the "Conversion Price").
Debt instrument conversion price			$ 1.44
Debt instrument conversion price, percentage			110.00%
Initial conversion price			$ 3.74
Volume-weighted average price, percentage			85.00%
Conversion price applicable period			10 days
Common shares issued as payment in outstanding principal																		3,282,934
Principal amount outstanding																		8,608,694
Principal payment										1,391,306
Additional Note [Member]
Debt Instrument [Line Items]
Loan amount borrowed										2,347,826
Aggregate amount issuable											8,000,000
Interest rate, stated percentage											9.00%
Initial conversion price											$ 3.74								$ 3.17
Debt instrument amortization payment description			The conversion rate applicable to any amortization payment made in shares of our common stock was the lower of (a) the Conversion Price and (b) a price equal to 85.0% of the average for a ten-day period immediately prior to the applicable amortization date of the volume-weighted average price of our shares of common stock.
Volume-weighted average price, percentage			85.00%
Conversion price applicable period			10 days
Common stock issued under warrant terms			1,562,500
Maximum percentage of cash flow effect on present value basis																			10.00%
Percentage of carrying value of additional note to determine change in fair value of embedded conversion option																			10.00%
Principal amount of loan, paid in cash										1,739,130
Gross proceeds from derivative instrument			8,000,000
Investment costs paid from proceeds			5,518
Direct financing cost			400,000
Deferred cost			317,201
Recorded expenses			82,799
Promissory Note [Member]
Debt Instrument [Line Items]
Promissory note face amount					14,750,000
Promissory Note [Member] | First Tranche [Member] | Oceanica Resources S. de. R.L [Member]
Debt Instrument [Line Items]
Promissory note face amount			2,000,000
Promissory Note [Member] | Minosa [Member] | Stock Purchase Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Promissory note face amount					$ 14,750,000